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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국전기전자재료학회 전기전자재료학회논문지 전기전자재료학회논문지 제18권 제6호
발행연도
2005.1
수록면
571 - 575 (5page)

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초록· 키워드

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In order to improve the efficiency of dye-sensitized solar cell (DSSC), TiO2 electrode screen-printed on transparent conducting oxide (TCO) substrate was sintered in variation with different temperature(350 to 550 ℃). TiO2 electrode on fluorine doped tin oxide (FTO) glass was assembled with Pt counter electrode on FTO glass. I-V properties of DSSCs were measured under solar simulator. Also, effect of sintering temperature on surface morphology of TiO2 films was investigated to understand correlation between its surface morphology and sintering temperature. Such surface morphology was observed by atomic force microscopy (AFM). Below sintering temperature of 500 ℃, efficiency of DSSCs was relatively lower due to lower open circuit voltage. Oppositely, above sintering temperature of 500 ℃, efficiency of DSSCs was relatively higher due to higher open circuit voltage. In both cases, lower fill factor (FF) was observed. However, at sintering temperature of 500 ℃, both efficiency and fill factor of DSSCs were mutually complementary, enhancing highest fill factor and efficiency. Such results can be explained in comparison of surface morphology with schematic diagram of energy states on the TiO2 electrode surface. Consequently, it was considered that optimum sintering temperature of α-terpinol included TiO2 paste is at 500 ℃.

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